I posted awhile back with the issues i was having and the codes that were current. The vehicle has a very small smoke issue in bank 1 near the air box. I put uv dye in the oil and could not find a leak anywhere. Someone recommended to me changing the camshaft chain tensioner half moon and flat gasket. I replaced them along with the camshaft chain tensioner as it was very warn and had almost no spring to it. Since replacing those parts, there engine now smokes a lot more. There is no coolant in the oil, and the coolant isn't bubbling. The crankcase pressure is normal as well. I went from having 6 codes to only 2 now. The current codes are P0010: a camshaft position actuator curcuit/open bank 1, and P0154: 02 sensor curcuit no activity detected bank 2 sensor 1. The second code didn't activate until i changed it the camshaft chain tensioner. The first code was an original code from before i changed the parts. The engine is also now starting to leak a small amount of oil from bank 1 side. It doesn't smoke a lot when first started only after driving for awhile, then at idle, but the smoke relatively goes away after i start driving. Anyone have any ideas? I would really appreciate it.

 

Smoke where? From the engine bay or out the tailpipe? Did you change your valve cover gasket?

The O2 sensor code sounds like a sensor issue to me resolved by changing it out.

Did you swap out the cam chain tensioner with an OEM unit or a cheap aftermarket unit? If an aftermarket unit, you can try swapping the solenoid from your OEM unit and see if the code goes away. It’s an easy swap with only 2 screws.

 

There is smoke coming out of the tail pipe, not a crazy amount but more than usual, most of the smoke is coming from the engine bay. When i first received the code i tried swapping the left and right solenoids but the code stayed at bank 1. That's what made me think it was possibly the seals for the tensioner or the tensioner itself. I replaced all of that for bank 1 and it just got worse, i also changed the valve cover gaskets a couple months ago and when i changed the tensioner i looked at the valve cover gaskets and they still look brand new. No cracks or tares. I will replace the 02 sensor and see if the any of the smoke receeds at all